Arizona taxes income at a single flat rate of 2.5%, regardless of how much you earn. That makes the state-tax side of the math simple — the harder part is usually the federal side, which is why this page runs both together: enter your numbers once and see your combined federal + Arizona tax, with 2025 vs. 2026 vs. 2027 shown side by side.

No state income tax
Flat rate
Progressive
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Arizona state tax: Flat 2.5% Rate. Enter your details below to see your combined federal + Arizona tax, including the state bracket breakdown.

Federal + Arizona State Tax Calculator

This calculator uses the same engine as the main US Tax Calculator — see our Methodology page for exactly where every figure comes from, and our Disclaimer for what this tool does not model (AMT, NIIT, EITC, local taxes, and more).